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1. 发明申请

US20070086487A1 Communication system, master communication device, and slave communication device 失效
标题翻译：通信系统，主通信设备和从通信设备
公开(公告)号：US20070086487A1
公开(公告)日：2007-04-19
申请号：US11511301
申请日：2006-08-29
申请人： Takeshi Yasuda , Yoshihiro Ashi , Ken Mutou
发明人： Takeshi Yasuda , Yoshihiro Ashi , Ken Mutou
IPC分类号： H04L7/00
CPC分类号： H04J3/0664 , H04J3/0688 , H04J2203/0085 , H04L12/403
摘要： A communication system is provided which allows synchronous devices in different synchronous communication networks to have synchronous communications with one another via an asynchronous communication network. In the communication system of the present invention, a master communication device generates a master clock based on a reference clock which is provided by a clock supplier. The master communication device sends a synchronization information frame, which contains information about the generated master clock, to plural slave communication devices via the asynchronous communication network. The slave communication devices each reproduce the master clock from the received synchronization information frame.
摘要翻译：提供一种通信系统，其允许不同同步通信网络中的同步设备经由异步通信网络彼此进行同步通信。在本发明的通信系统中，主通信装置基于由时钟提供者提供的基准时钟生成主时钟。主通信设备经由异步通信网络将包含有关生成的主时钟的信息的同步信息帧发送到多个从通信设备。从属通信设备各自从接收到的同步信息帧中再现主时钟。

2. 发明授权

US07620074B2 Communication system, master communication device, and slave communication device 失效
标题翻译：通信系统，主通信设备和从通信设备
公开(公告)号：US07620074B2
公开(公告)日：2009-11-17
申请号：US11511301
申请日：2006-08-29
申请人： Takeshi Yasuda , Yoshihiro Ashi , Ken Mutou
发明人： Takeshi Yasuda , Yoshihiro Ashi , Ken Mutou
IPC分类号： H04J3/06
CPC分类号： H04J3/0664 , H04J3/0688 , H04J2203/0085 , H04L12/403
摘要： A communication system is provided which allows synchronous devices in different synchronous communication networks to have synchronous communications with one another via an asynchronous communication network. In the communication system of the present invention, a master communication device generates a master clock based on a reference clock which is provided by a clock supplier. The master communication device sends a synchronization information frame, which contains information about the generated master clock, to plural slave communication devices via the asynchronous communication network. The slave communication devices each reproduce the master clock from the received synchronization information frame.
摘要翻译：提供一种通信系统，其允许不同同步通信网络中的同步设备经由异步通信网络彼此进行同步通信。在本发明的通信系统中，主通信装置基于由时钟提供者提供的基准时钟生成主时钟。主通信设备经由异步通信网络将包含有关生成的主时钟的信息的同步信息帧发送到多个从通信设备。从属通信设备各自从接收到的同步信息帧中再现主时钟。

3. 发明授权

US08634426B2 Transmission device with function of packetizing and transmitting 失效
标题翻译：具有分组和传输功能的传输设备
公开(公告)号：US08634426B2
公开(公告)日：2014-01-21
申请号：US13128788
申请日：2008-11-14
申请人： Yoshio Nogi , Masatoshi Shibasaki , Naohiro Sakakida , Yoshihiro Ashi , Kazutaka Sakai
发明人： Yoshio Nogi , Masatoshi Shibasaki , Naohiro Sakakida , Yoshihiro Ashi , Kazutaka Sakai
IPC分类号： H04L12/28 , H04L12/66
CPC分类号： H04J3/1611 , H04J3/0685
摘要： When multiple SDH/SONET frame are accumulated and then lower-order path information removed from multiple frames is multiplexed into the same packet to achieve better transmission efficiency during packetization, the delay for accumulating increases. Disclosed is a transmission device that packetizes an SDH/SONET lower-order path with timing which is an integer factor of 1 cycle of the SDH frame. In this case, the destination loads the same multiple lower-order path in one packet. The result is that delay time accompanying lower-order path packetization is kept to less than the time of 1 cycle of the SDH frame, and the efficiency with which lower-order paths are accommodated in packets is further increased. The result is that improved transmission efficiency is realized.
摘要翻译：当多个SDH / SONET帧被累积，然后从多个帧中删除的低阶路径信息被多路复用到相同的分组中以在分组化期间实现更好的传输效率时，累加的延迟增加。公开了一种发送装置，其以SDH帧的1周期的整数因子的定时对SDH / SONET低阶路径进行打包。在这种情况下，目的地在一个数据包中加载相同的多个低阶路径。结果是，伴随低阶路径分组化的延迟时间保持为小于SDH帧的1个周期的时间，并且进一步增加了在分组中容纳低阶路径的效率。结果是实现了提高的传输效率。

4. 发明申请

US20120224488A1 METHOD OF CONNECTIVITY MONITORING BY SUBSCRIBER LINE TERMINATING APPARATUS 审中-公开
标题翻译：通过订户线路终端设备进行连接监控的方法
公开(公告)号：US20120224488A1
公开(公告)日：2012-09-06
申请号：US13370001
申请日：2012-02-09
申请人： Masao NIIBE , Akihiko Tsuchiya , Takayuki Kanno , Yoshihiro Ashi
发明人： Masao NIIBE , Akihiko Tsuchiya , Takayuki Kanno , Yoshihiro Ashi
IPC分类号： H04L12/26
CPC分类号： H04L43/0811 , H04L12/4641 , H04L43/10
摘要： A method carrying out connectivity monitoring of an entire network by: transmitting a CCM frame in which the transmission source is set to a multicast MAC address, from a higher level side (center side) terminating device to a plurality of lower level side (base point side) terminating devices; transmitting a CCM frame in which a unicast MAC address is set, from the lower level side terminating devices to the higher level side terminating device; transmitting a CCM frame in which a multicast MAC address is set, from a controller to the higher level side terminating device or the lower level side terminating devices; and transmitting a CCM frame in which a unicast MAC address is set, from the higher level side terminating device or the lower level side terminating devices to the controller.
摘要翻译：一种通过以下方法来实现整个网络的连接性监视：从更高级侧（中心侧）终端设备向多个下级侧（基点）发送将发送源设置为组播MAC地址的CCM帧侧）终端设备; 从低级侧终端设备向上级终端设备发送其中设置单播MAC地址的CCM帧; 从控制器向较高级侧终端设备或下级侧终端设备发送其中设置了多播MAC地址的CCM帧; 并将来自上位侧终端装置或下位侧终端装置的CCM帧设置为单播MAC地址到控制器。

5. 发明授权

US08189571B2 System apparatus and method for interconnecting TDM and frame/packet communication networks 有权
标题翻译：用于互连TDM和帧/分组通信网络的系统装置和方法
公开(公告)号：US08189571B2
公开(公告)日：2012-05-29
申请号：US11339449
申请日：2006-01-26
申请人： Masahiko Mizutani , Yoshihiro Ashi , Masayuki Takase , Atsushi Iwamura , Akihiko Tanaka , Hideki Endo , Tohru Kazawa
发明人： Masahiko Mizutani , Yoshihiro Ashi , Masayuki Takase , Atsushi Iwamura , Akihiko Tanaka , Hideki Endo , Tohru Kazawa
IPC分类号： H04L12/66
CPC分类号： H04L45/04 , H04J3/1617 , H04J2203/0083
摘要： An interconnection between fully synchronous networks and next-generation frame communications networks is disclosed. A means of bidirectional frame format conversion between a synchronous multiplexing system and a logical multiplexing system is provided, along with a method of transmitting data between different networks on a path as if it were being transmitted in the same network. Further, when converting network control information in an STM network into data suitable for a packet network, even across the boundary of a synchronous multiplexing system and a logical multiplexing system, a unified communication management means is provided over the whole path.
摘要翻译：公开了完全同步网络和下一代帧通信网络之间的互连。提供了在同步多路复用系统和逻辑多路复用系统之间的双向帧格式转换的方法，以及在路径上的不同网络之间传输数据的方法，如同在同一网络中传输一样。此外，当将STM网络中的网络控制信息转换为适用于分组网络的数据时，甚至跨越同步复用系统和逻辑多路复用系统的边界，在整个路径上提供统一的通信管理装置。

6. 发明授权

US07876778B2 Packet transfer apparatus 有权
标题翻译：分组传送装置
公开(公告)号：US07876778B2
公开(公告)日：2011-01-25
申请号：US12073951
申请日：2008-03-12
申请人： Masayuki Takase , Hideki Endo , Takayuki Kanno , Akihiko Tanaka , Yoshihiro Ashi , Nobuyuki Yamamoto
发明人： Masayuki Takase , Hideki Endo , Takayuki Kanno , Akihiko Tanaka , Yoshihiro Ashi , Nobuyuki Yamamoto
IPC分类号： H04J3/16
CPC分类号： H04L69/08 , H04L12/5601 , H04L45/74 , H04L2012/5654 , H04L2012/5658 , H04L2012/5667 , H04L2012/5669 , H04L2012/5671
摘要： A packet transfer apparatus connects two networks of different protocols. The packet transfer apparatus, connected to a first communication network and a second communication network, performs the steps of: storing first destination correspondence information; receiving a packet of the first communication protocol; based on the first destination correspondence information, determining destination information of a packet of the second communication protocol corresponding to destination information of the received packet of the first communication protocol; generating the header of the packet of the second communication protocol, based on the determined destination information of the packet of the second communication protocol; converting the received one or more packets of the first communication protocol into one or more packets of the third communication protocol; and adding the generated header of the packet of the second communication protocol to the packets of the third communication protocol.
摘要翻译：分组传送装置连接不同协议的两个网络。连接到第一通信网络和第二通信网络的分组传送装置执行以下步骤：存储第一目的地对应信息; 接收第一通信协议的分组; 基于所述第一目的地对应信息，确定与所述第一通信协议的接收分组的目的地信息相对应的所述第二通信协议的分组的目的地信息; 基于所确定的第二通信协议的分组的目的地信息，生成第二通信协议的分组的报头; 将所接收的第一通信协议的一个或多个分组转换成第三通信协议的一个或多个分组; 以及将生成的第二通信协议的分组的报头添加到第三通信协议的分组。

7. 发明申请

US20100067901A1 Passive optical network system and fault determination method 有权
标题翻译：无源光网络系统和故障确定方法
公开(公告)号：US20100067901A1
公开(公告)日：2010-03-18
申请号：US12379634
申请日：2009-02-26
申请人： Masahiko Mizutani , Yusuke Yajima , Yoshihiro Ashi
发明人： Masahiko Mizutani , Yusuke Yajima , Yoshihiro Ashi
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04B10/03 , H04B10/07955 , H04B10/272 , H04L25/0298 , H04Q11/0067 , H04Q2011/0081 , H04Q2011/0083
摘要： In a passive optical network system, a parent station includes a reception circuit that receives an optical signal from each of child stations using a threshold used to identify if the optical signal is 0 or 1; a bandwidth setting unit that determines a time at which each child station sends an optical signal; a storage unit that stores thresholds and intensities of optical signals received from the child stations; and a control unit that sets a threshold, stored corresponding to a sending time, in,the reception circuit to control a reception of an optical signal. The control unit has a function that compares an intensity of a signal received from each child station at an optical signal reception time with information stored in the storage unit to detect and determine a fault in the child station or in the optical fiber connected to the child station.
摘要翻译：在无源光网络系统中，母站包括接收电路，其使用用于识别光信号是0或1的阈值从每个子站接收光信号; 带宽设定单元，确定每个子站发送光信号的时间; 存储单元，其存储从所述子站接收的光信号的阈值和强度; 以及控制单元，其将接收电路中相应于发送时间存储的阈值设置为控制光信号的接收。控制单元具有将在光信号接收时刻从每个子站接收的信号的强度与存储在存储单元中的信息进行比较的功能，以检测和确定子站中或连接到该小孩的光纤中的故障站。

8. 发明授权

US07616567B2 Shaping apparatus, communication node and flow control method for controlling bandwidth of variable length frames 失效
标题翻译：整形装置，通信节点和流量控制方法，用于控制可变长度帧的带宽
公开(公告)号：US07616567B2
公开(公告)日：2009-11-10
申请号：US11029570
申请日：2005-01-06
申请人： Taishi Shinagawa , Masanobu Kobayashi , Yoshihiro Ashi , Toru Kazawa
发明人： Taishi Shinagawa , Masanobu Kobayashi , Yoshihiro Ashi , Toru Kazawa
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L12/26 , H04L12/28
CPC分类号： H04L47/21 , H04L47/10 , H04L47/13 , H04L47/22
摘要： A shaping apparatus comprising a plurality of buffer memories allocated for different flows, bandwidth control units associated with the buffer memories, and a read control unit, wherein each of the bandwidth control units issues a first frame output request based on a maximum allowed bandwidth and a second frame output request based on a minimum guaranteed bandwidth, and the read control unit selects a bandwidth control unit to be permitted for frame output execution out of bandwidth control units that are issuing the first or second frame output request, giving priority to the second frame output request.
摘要翻译：一种成形装置，包括分配给不同流的多个缓冲存储器，与缓冲存储器相关联的带宽控制单元和读控制单元，其中每个带宽控制单元基于最大允许带宽发出第一帧输出请求，基于最小保证带宽的第二帧输出请求，并且读取控制单元从发出第一或第二帧输出请求的带宽控制单元中选择要被允许进行帧输出执行的带宽控制单元，给予第二帧优先权输出请求。

9. 发明申请

US20090016378A1 Packet transfer apparatus 有权
标题翻译：分组传送装置
公开(公告)号：US20090016378A1
公开(公告)日：2009-01-15
申请号：US12073951
申请日：2008-03-12
申请人： Masayuki Takase , Hideki Endo , Takayuki Kanno , Akihiko Tanaka , Yoshihiro Ashi , Nobuyuki Yamamoto
发明人： Masayuki Takase , Hideki Endo , Takayuki Kanno , Akihiko Tanaka , Yoshihiro Ashi , Nobuyuki Yamamoto
IPC分类号： H04J3/22
CPC分类号： H04L69/08 , H04L12/5601 , H04L45/74 , H04L2012/5654 , H04L2012/5658 , H04L2012/5667 , H04L2012/5669 , H04L2012/5671
摘要： A packet transfer apparatus connects two networks of different protocols. The packet transfer apparatus, connected to a first communication network and a second communication network, performs the steps of: storing first destination correspondence information; receiving a packet of the first communication protocol; based on the first destination correspondence information, determining destination information of a packet of the second communication protocol corresponding to destination information of the received packet of the first communication protocol; generating the header of the packet of the second communication protocol, based on the determined destination information of the packet of the second communication protocol; converting the received one or more packets of the first communication protocol into one or more packets of the third communication protocol; and adding the generated header of the packet of the second communication protocol to the packets of the third communication protocol.
摘要翻译：分组传送装置连接不同协议的两个网络。连接到第一通信网络和第二通信网络的分组传送装置执行以下步骤：存储第一目的地对应信息; 接收第一通信协议的分组; 基于所述第一目的地对应信息，确定与所述第一通信协议的接收分组的目的地信息相对应的所述第二通信协议的分组的目的地信息; 基于所确定的第二通信协议的分组的目的地信息，生成第二通信协议的分组的报头; 将所接收的第一通信协议的一个或多个分组转换成第三通信协议的一个或多个分组; 以及将生成的第二通信协议的分组的报头添加到第三通信协议的分组。

10. 发明申请

US20070030937A1 Bit synchronization circuit with phase tracking function 失效
标题翻译：位同步电路具有相位跟踪功能
公开(公告)号：US20070030937A1
公开(公告)日：2007-02-08
申请号：US11299819
申请日：2005-12-13
申请人： Yusuke Yajima , Tohru Kazawa , Yoshihiro Ashi
发明人： Yusuke Yajima , Tohru Kazawa , Yoshihiro Ashi
IPC分类号： H03D3/24
CPC分类号： H04L7/0337 , H03L7/0814 , H03L7/087 , H03L7/091 , H04L7/0004 , H04L7/046
摘要： A bit synchronization circuit comprising an initial phase determining unit for rapidly determining, during a period of receiving a preamble of burst data, a clock with a phase synchronized with received burst data from among multi-phase clocks having the same frequency as an internal reference clock and a phase tracking unit for modifying the synchronized phase clock responsive to phase variation of received data during a period of receiving a payload of burst data by taking the synchronized phase clock determined by the initial phase determining unit as an initial phase. The bit synchronization circuit retimes burst data with a data retiming clock having a predetermined phase relation with the synchronized phase clock and outputs the burst data in synchronization with the internal reference clock.
摘要翻译：一种位同步电路，包括初始相位确定单元，用于在从脉冲串数据的前导码接收周期内快速确定具有与内部参考时钟相同频率的多相位时钟中的接收脉冲串数据同步的时钟以及相位跟踪单元，用于通过将由初始相位确定单元确定的同步相位时钟作为初始相位，在接收到突发数据的有效载荷的周期期间响应于接收数据的相位变化来修正同步相位时钟。位同步电路使用具有与同步相位时钟具有预定相位关系的数据重新定时时钟重新匹配突发数据，并且与内部参考时钟同步输出脉冲串数据。

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